Long-term survival of patients with cerebrovascular accident in different age groups in the REGION-M registry

Abstract

Aim. To study the two-year survival rate of patients with cerebrovascular accident (CVA) in different age groups.Material and methods. The outpatient part of the REGION-M registry included 684 patients assigned to the City Polyclinic № 64 in Moscow, discharged from the F. I. Inozemtsev City Clinical Hospital (Moscow) in the period from January 1, 2012 to April 30, 2017 with a confirmed diagnosis of stroke or transient ischemic attack. All patients were divided into 5 age groups: group 1 — from 18 to 50 years old (n=72 (10,5%)), group 2 — from 51 to 60 years old (n=122 (17,8%)), group 3 — from 61 to 70 years old (n=156 (22,8%)), group 4 — from 71 to 80 years old (n=185 (27,0%)) and group 5 — 81 years and above (n=149 (21,8%)). Patient survival was assessed after 2 years of follow-up.Results. The mortality rate of patients during the follow-up period significantly increased with age as follows: in patients of 18-50 years old — 4%, 51-60 years old — 9,8%, 61-70 years old — 23,7%, 71-80 years old — 34%, 81-100 years old — 55% (p<0,0001). The relative death risk was 2,3 in group 2 (NA), 6,8 in group 3 (p<0,001), 9,8 in group 4 (p<0,0001) and 18,5 in group 5 (p<0,0001) compared with group 1. With increasing age in the study cohort, the proportion of women increased as follows: from 47,2% in group 1 to 77,9% in group 5 (p<0,0001). However, mortality among men and women in the groups did not differ. Patients in older age groups were more likely to have comorbidities and disability before the CVA. With increasing age, ischemic stroke was significantly more common and transient ischemic attack was less common (p<0,001).Conclusion. Mortality of patients who underwent stroke was significantly higher in older age groups and did not differ among men and women.